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| frequency stabilizer | |||
| frequency regulator | |||
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稳 频器 : 30 phrases in 8 subjects |
| Air defense | 5 |
| Construction | 2 |
| Electronics | 4 |
| General | 1 |
| Information technology | 1 |
| Oil / petroleum | 1 |
| Space | 2 |
| Technology | 14 |
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